Founded in 2010, OHM Building and Refurbishing Services began as a small electrical contracting business serving the local Harrow community. What started with one qualified electrician and a commitment to exceptional service has grown into a comprehensive building services company trusted by thousands across North West London.
Over the years, we've expanded our expertise to include plumbing and heating, kitchen and bathroom fitting, and flooring installation. Despite our growth, we've remained a family-run business that values every customer relationship and takes pride in delivering quality workmanship on every project, big or small.
Today, we're proud to serve Harrow, Wembley, Barnet, Ealing, and Brent with a team of fully qualified, certified tradespeople who share our commitment to excellence. Our reputation has been built on recommendations, repeat business, and a genuine passion for what we do. Read what our customers say on our reviews page.
The principles that guide everything we do
We never compromise on quality. Every installation, repair, and service is completed to the highest standards using premium materials and proven techniques.
Honest quotes, clear communication, and no hidden costs. We build lasting relationships with our customers based on trust and integrity.
Your satisfaction is our priority. We listen to your needs, respect your home, and don't consider the job done until you're completely happy.
You can trust us with your home
NAPIT Approved Contractor
Electrical Safety Certified
Gas Safe Registered
Legal Gas Work Certified
Worcester Bosch Accredited
Extended Warranties Available
Part P Certified
Building Regulations Compliant
What this means for you: All our work is carried out by qualified professionals, fully insured, and complies with UK building regulations. We provide necessary certificates and guarantees for your peace of mind. Learn more about our NAPIT electrical services and Gas Safe boiler installations.
Proudly serving North West London
Service Area Map
Covering North West London
Harrow
HA0, HA1, HA2, HA3
Wembley
HA9, HA0
Barnet
EN4, EN5, NW4
Ealing
W5, W13, UB1
Brent
NW2, NW6, NW10
Surrounding Areas
Call to confirm coverage
Not sure if we cover your area? Give us a call on 07908 208789 and we'll let you know. We're always happy to travel for the right project!
What sets us apart from other contractors
Personal service from people who care about their reputation and your satisfaction.
One trusted company for all your electrical, plumbing, and building needs.
NAPIT, Gas Safe, Worcester Bosch accredited. All work certified and guaranteed.
Transparent pricing with detailed quotes. What we quote is what you pay.
24/7 emergency callout for electrical and plumbing emergencies.
Trusted by thousands across North West London. 4.9-star average rating.
Common questions about our company and services
We founded OHM Building Services in 2010, starting as a small electrical contracting business in Harrow. Over 15 years, we've grown into a comprehensive building services company serving thousands of customers across North West London. Our longevity and growth are testament to our commitment to quality and customer satisfaction.
Yes, absolutely. We hold all necessary certifications including NAPIT approval for electrical work, Gas Safe registration for gas work, Worcester Bosch accreditation, and Part P certification. We're fully insured with public liability and professional indemnity coverage, and all our work complies with UK building regulations.
We primarily serve North West London including Harrow (HA0-HA3), Wembley (HA9, HA0), Barnet (EN4, EN5, NW4), Ealing (W5, W13, UB1), and Brent (NW2, NW6, NW10). We also cover surrounding areas. Contact us to confirm if we cover your specific location.
Yes, we provide 24/7 emergency services for electrical and plumbing issues. Whether it's a power outage, water leak, or boiler breakdown, our emergency team can respond quickly to minimize damage and restore your systems. Call us anytime on 07908 208789 for emergency assistance.
Quality is our top priority. All our tradespeople are fully qualified and certified in their specialties. We use premium materials, follow industry best practices, and comply with all building regulations. Every project is supervised, inspected, and tested. We provide necessary certificates and guarantees, and our 4.9-star rating from over 1,750 reviews on MyBuilder, Google, and RatedPeople speaks to our consistent quality.
Yes, all our work comes with comprehensive guarantees. Workmanship is guaranteed for a minimum of 12 months, with extended warranties available on certain installations like new boilers (up to 10 years with Worcester Bosch). We stand behind our work and will address any issues that arise within the guarantee period at no extra cost.
Get a free, no-obligation quote for your project. We're here to help bring your vision to life.
